C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
C07F 17/00 (2006.01) C08F 4/6592 (2006.01) C08F 10/06 (2006.01)
Patent
CA 2186232
A class of metallocene compounds having two cyclopentadienyl rings bridged by an alkylidene group is disclosed. These metallocene compounds can be suitably used as catalyst components for the polymerization of olefins. In particular, be polymerising propylene in the presence of a catalyst based on these metallocene compounds, polymers having very high isotactic indexes, high molecular weight and narrow molecular weight distributions can be obtained in high yields.
L'invention porte sur une catégorie de composés métallocène présentant deux cycles de cyclopentadiényle reliés par un groupe alkylidène et pouvant servir de constituants de catalyseurs de polymérisation des oléfines. De tels catalyseurs à base de ces composés métallocène peuvent en particulier servir à la polymérisation du propylène, produisant avec un bon rendement des polymères présentant de très forts indices isostatiques, des poids moléculaires élevés et une distribution étroite des poids moléculaires.
Ivchenko Pavel V.
Nifant'ev Ilya E.
Piemontesi Fabrizio
Resconi Luigi
Mccarthy Tetrault Llp
Montell Technology Company B.v.
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